infectious area的用法和样例：
例句
- No quarantine inspection is applied at night to a ship coming from an infected area.
对来自疫区的船舶，不实行夜间检疫。 - More important were the mountains and other natural barriers, which scientists expected would keep CWD from spreading rapidly out of the endemic area.
更重要的是山脉与其他的自然屏障，科学家预期它们能阻挡慢性消耗病从地方性疫区快速传开。
